Rolling-mill



Patente d Aug. 2, I898.

G. G. MGMUBTRY.

ROLLING HILL.

(Application filed De. 16, 1897.)

(No Model.)

A u Q m w INVENTO Q A a 10F 1 f 1 X j n m mwxw R {.1 1 0 6 Q Q ilmv -uTI mm Atty.

'TR: Noams PETERS co, Puofouwa, WASHINGTON, nv c.

igamen commands art.

SPECIFICATION forming part of Letters Eatent Yule. 608,381, dated August1898, Application filed December 16,1897. Serial No. 662,144. (Nomodel.)

The invention described herein relates tocertain improvements inrolling-mills, and has for its object a construction and arrangement ofheating devices in suitable proximity to the feed-table extendingbetween the shear Y mechanism and the roughing-mill, whereby sections ofbillets or bars may be maintained at a suitable rolling temperature as.they are being moved along such table.

As is well known by those skilled in the art, it frequently happens thatsections of blooms after they have left the shear mechanism must be heldupon the table awaiting the reduction in the roughing-mill of thepreceding sections. During this time such sections so held upon thetable suffer such a considerable loss of heat as to be below a goodrolling temperature by the time they reach the roughingqnill. ficulty orobjectionable feature, my invention consists, in general terms, in thearrangement along the line of the table of one or more pipes providedwith perforations or nipples and connected to a suitable source ofgas-supply, so that the flames of burning gas will impin ge upon thesections lying upon the table. The invention further consists in theprovision of a valve mechanism adapted to be shifted to open position bythe movement of the bloom-sections along the table and to beautomatically closed after the passage of such sections, therebypreventing any wasting of gas while the table is unoccupied.

The invention is hereinafter more fully described and claimed.

In the accompanying drawings, forming a part of this specification,Figure 1 shows in side elevation a shear mechanism and a rou ghing-millwith an interposed feed-table having my improvements applied thereto.Fig. 2 is a top plan view of the same; and Fig. 3 is a transversesection on an enlarged scale, the

plane of section being indicated. by the line III III, Fig. 1,

In order to overcome this dif- In the practice of my invention I employany suitable former construction of shear mechanism 1 and roughing-millBetween these two mechanisms is arranged a feedtable of any suitable orwellknown form or construction, provided with positively-drivenfeed-rollers 3 and interposed aprons 4 forthc orderly movement ofbloom-sections from the shear mechanism to the roughing-rolls.

On opposite sides'of the feed-table I arrange one or more sections ofpipe 5, having their ends closed and preferably provided with nipples 6,said pipes and nipples being so arranged as to direct flames upon abloomsection movingalon g the table. The pipe-sec tions 5 are connectedby a pipe 7 to a suit able source of gas-supply,'a valve 8 beingarranged in such pipe connection. Any suitable form or construction ofvalve and valveoperating mechanism adapted to be shifted by thebloom-section as it is moved along the table and to automatically closeafter the passage of such section may be employed. A suitable form ofsuch valve-operating mechanism is shown in the'drawings and consists ofa lever 10, secured to the valve-stem and provided at one end with'aweight 11, adapted to shift the valve to closed position. The oppositeend of this lever is connected by a link 12 to one arm of a bell-crank13, which is so mounted that its opposite arm 14 will project above thesurface of the aprons a, so as to be struck and shifted by abloom-section as it passes along the feed-table. By the shifting ofthis. arm or trigger let the valve is opened, thereby permitting gas toflow from the nip ples 6 and be ignited by the bloom-section, which atsuch time'will be at a sufiiciently high temperature to effect suchignition.

lVhile the pipe 5 may be made of a length approximately equal to that ofthe table, it is preferred to divide it up into a seriesof sectionsapproximately equal in length to the length of sections into which thebloom is to be divided. Each of these sections is independentlyconnected to the gas-supply, and each connection is provided with avalve and valve mechanism similar to tin-t hereinbeforo referred to.Such a construction permits of the use of gas only'wnen abloom-sectionoccupies a position in front of one of the pipesection s, therebyeffecting a considerable ing of gas, as the flow of the latter will beautomatically checked as soon as the bloomsection has passed beyond thecontrolling trigger or arm.

Although under most circumstances or conditions the play of the flameupon the bloomsection will maintain the latter at a good rolling heat, amore efficient action can be obtained by placing a hood or box 15 on topof the feed-table, thereby inclosing the bloom-sections as they passalong the table. IVhen using such shield or box, the nipples 0 willproject through the side walls of the same, as clearly shown in Fig. 3.

\Yhile the form or construction of apparatus hereinbefore described isespecially applicable for washing, heating, or maintaining thetemperature of articles passing along a feedtable, such apparatus can beused for directing any fluid upon the article passing along the table,and hence I desire to include within the scope of the claims the use ofsuch apparatus for the purpose of treating the ingots in any desiredmanner.

I claim herein as my invention 1. The combination of a feed-table, oneor more pipes provided with discharge openings or nipples arranged insuch relation to the table as to direct a fluid flowing from thedischarge-opening toward or against an article passing along the table,a valve for regulating or controlling the flow of fluid to such pipesand means operated by the article as it moves along the table forshifting said valve, substantially as set forth.

2. The combination of a feed-table, one or more pipes provided withdischarge openings or nipples and arranged in such relation-to the tableas to direct a fluid flowing from the discharge-openin gs toward oragainst an article passing along the table, a valve controlling the flowof fluid to such pipe or pipes, means operative by the article as itpasses along the table for opening the valve and means for automaticallyclosing the valve after the passage of the article, substantially as setforth.

3. The combination of a feed-table and hood or box on said table, one ormore lines of pipe provided with discharge-nipples projecting into thebox or hood, a valve for regulating the flow of fluid to such lines ofpipe and means operated by the article as it moves through the hood orbox for shifting said valve, substantially as set forth.

I. The combination of a feed-table, two or more sections of pipen'ovided with discharge-nipples and arranged insueh relation to thetable as to direct the fluid flowing through the sections of pipe towardor against an article on said table, valves controlling the flow offluid through the pipe-sections, and means operated by the article as itpasses along the table for shifting the valve, sulr stantially as setforth.

In testimony whereof I have hereunto set my hand.

GEORGE G. l\'l( Ml l ll/lllY.

